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I've stumbled onto a highly feature rich yet high performing ROM after testing many. Accomplished by starting with a MIUI V4 2.7.6 ROM, replacing the resource hungry Credential manager with SU, getting rid of some bloat apps, loading other useful ones and installing the OC kernel from the later releases. That gets working themes and 195MB of free RAM after a clean boot, leaning it out to about the same level as the impressive Tesla ROM I was using previously. Benefit here is I get the outstanding integrated MIUI themeing. Lots of usable eye candy here.

- I can get up to 195MB free on bootup on the 2.7.6 release. This is sensational for a pretty ROM like this one. Versions 2.7.13 or thereafter can only get 152-160MB free on bootup. That eliminates those versions as candidates as they are just too bloated.

- appears built on B926 or newer B952 stock ICS. This made is possible for me use Huawei apps including layering EmotionUI (EMUI) on this ROM. Main benefit there is the Emotion UI widgets (MEWidget). I installed both the Huawei and MiUI launchers preferring MiUI one as it provides the same feature set then some plus integrates into the System Settings->Launcher menuitem.

- holding the HOME button brings up a task-kill list with memory free and a zapping to quickly close background apps. Versions up to 2.7.6 have a simple task list and zap button on left with a task manager shortcut button on the right.. Versions 2.7.13 or newer have a more sophisticated animated one-touch-button.

- Has outstanding MiUI themeing. Online themes can change the look of the entire phone with a few selections. Or can just alter individiual wallpapers/locks screen/phone/sounds to your liking.

- 2G/3G toggle though it simply pushes the user to the Settings Panel and doesn't switch it directly. 2.7.6 drops the user into a second menu where they set 3G/2G/3G perferred modes. Newer versions just have that second menu.

- beautiful lock ring that doubles up as sound play/pause ring if playing music in the background using the MIUI music player.

- standard package includes a credential manager that sucks up a lot of resources. Once replaced by SuperUser (SU) the ROM becomes usable.

These run an unusual kernel

I went through GenoKolar's MIUI v4 releases versions 2.7.4 to the last 3.2.27 (Feb-27-2013) version as found at anzhi. I found there were five kernels used:

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ROM looks and plays great but there's one rather serious functionality bug. If you connect via USB to PC, then disconnect, the internal SD (2GB) is no longer mounted/accessible. It requires a reboot as a fix. I'm using the 2.7.6 base but even the later 3.2.8 Chinese release here mentions it as a bug.

I'm guessing that is a kernel bug. These ROMs running some unique kernel that also works with Stock-based ICS ROMs but stock ICS ROMs don't work with it. I've conclude that Geno must have added some customisations to the ROM.

I've also not managed to get init.d support working, even after modifying and repackaging the image's ramdisk to do the necessary calls.

An updated kernel would help but unless someone has contact with Geno.Kolar then looks like using this ROM would come with that one serious bug.

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I've stumbled onto a highly feature rich yet high performing ROM after testing many. Accomplished by starting with a MIUI V4 2.7.6 ROM, replacing the resource hungry Credential manager with SU, getting rid of some bloat apps, loading other useful ones and installing the OC kernel from the later releases. That gets working themes and 195MB of free RAM after a clean boot, leaning it out to about the same level as the impressive Tesla ROM I was using previously. Benefit here is I get the outstanding integrated MIUI themeing. Lots of usable eye candy here.

- I can get up to 195MB free on bootup on the 2.7.6 release. This is sensational for a pretty ROM like this one. Versions 2.7.13 or thereafter can only get 152-160MB free on bootup. That eliminates those versions as candidates as they are just too bloated.

- appears built on B926 or newer B952 stock ICS. This made is possible for me use Huawei apps including layering EmotionUI (EMUI) on this ROM. Main benefit there is the Emotion UI widgets (MEWidget). I installed both the Huawei and MiUI launchers preferring MiUI one as it provides the same feature set then some plus integrates into the System Settings->Launcher menuitem.

- holding the HOME button brings up a task-kill list with memory free and a zapping to quickly close background apps. Versions up to 2.7.6 have a simple task list and zap button on left with a task manager shortcut button on the right.. Versions 2.7.13 or newer have a more sophisticated animated one-touch-button.

- Has outstanding MiUI themeing. Online themes can change the look of the entire phone with a few selections. Or can just alter individiual wallpapers/locks screen/phone/sounds to your liking.

- 2G/3G toggle though it simply pushes the user to the Settings Panel and doesn't switch it directly. 2.7.6 drops the user into a second menu where they set 3G/2G/3G perferred modes. Newer versions just have that second menu.

- beautiful lock ring that doubles up as sound play/pause ring if playing music in the background using the MIUI music player.

- standard package includes a credential manager that sucks up a lot of resources. Once replaced by SuperUser (SU) the ROM becomes usable.

These run an unusual kernel

I went through GenoKolar's MIUI v4 releases versions 2.7.4 to the last 3.2.27 (Feb-27-2013) version as found at anzhi. I found there were five kernels used:

Not made public yet. I'm not a developer so am hesitant to do a reease without some user testing with critique/advice. Saying that, I'm using it as a daily ROM.

I'm wondering if anybody else is enthused as I am about this ROM? I figure others' may have just skimmed over it, as I was about to, after seeing poor out-of-the-box performance.

Thanks for the research. I normally use Miui-GB which is fast and good, ICS needs OK-ing and I'm glad you found the kernel for that. With OK kernel the performance is just like the GB version, too bad about the SD card bug.